11220400135 has 16 divisors (see below), whose sum is σ = 15390637056. Its totient is φ = 7692658848.

The previous prime is 11220400111. The next prime is 11220400181. The reversal of 11220400135 is 53100402211.

It is not a de Polignac number, because 11220400135 - 2⁷ = 11220400007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205282 + ... + 254128.

It is an arithmetic number, because the mean of its divisors is an integer number (961914816).

Almost surely, 2^11220400135 is an apocalyptic number.

11220400135 is a deficient number, since it is larger than the sum of its proper divisors (4170236921).

11220400135 is an equidigital number, since it uses as much as digits as its factorization.

11220400135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55422.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 11220400135 its reverse (53100402211), we get a palindrome (64320802346).

The spelling of 11220400135 in words is "eleven billion, two hundred twenty million, four hundred thousand, one hundred thirty-five".